FAO works to promote coherent approaches to sustainable land and water management. This flagship report analyses land measurement units in pakistan pdf variety of options for overcoming constraints and improving resource management in areas of heightened risk.
In each location, a mix of changes in institutional and policy measures will have to be combined with greater access to technologies for better management of land and water resources. This paper aims to provide policy-makers with a helpful overview of the technical and economic aspects of water use in agriculture, with particular emphasis on crop and livestock production. Through 2050, in many countries, agriculture will remain an important determinant of economic growth, poverty reduction, and food security, even as, over time, the proportion of agricultural revenue in national gross income declines. Measuring, mapping and understanding water risks around the globe.
In these situations, up land and many more. Find old reference marks, data can be visualised in the embedded viewer or shapefiles can be downloaded by clicking the Raw Data link on the top right. Data aligns with US TIGER data at US — national scenic areas and major lakes. After the D – this was equal to 8 oxgangs or 4 virgates.
Aqueduct’s global water risk mapping tool helps companies, investors, governments, and other users understand where and how water risks and opportunities are emerging worldwide. Map: Aqueduct Country and River Basin Rankings This map shows countries and river basins’ average exposure to five of Aqueduct’s water risk indicators: baseline water stress, interannual variability, seasonal variability, flood occurrence, and drought severity. This page contains a categorised list of links to over 300 sites providing freely available geographic datasets – all ready for loading into a Geographic Information System. We have links to everything from arctic permafrost maps to gridded population data – simply scroll through the list, or use the dropdown menus above to jump to a specific section of interest. See the FAQ for more information on the what, who, how and why of the list. Beware: The data linked to below may be inaccurate, incomplete, or just plain wrong.
This list was last updated on 9 April 2018. Available at multiple levels of detail. A version of this data is also available in the Wagner VII projection, which has good equal area properties, here. Natural Earth – Raster: Includes various raster images, intended for use as backgrounds for other data, for example hypsometric tints, satellite derived land cover, shaded relief etc. Global Map: A set of consistent GIS layers covering the whole globe at 1km resolution including: transportation, elevation, drainage, vegetation, administrative boundaries, land cover, land use and population centres. Produced by the International Steering Committee on Global Mapping. DIVA-GIS Country Data: A collection of data collected from a number of the sources below – includes administrative areas, inland water, roads and railways, elevation, land cover, population and climate.